Across
- 2. Body part similar in function but not structure.
- 4. Selective breeding of organisms.
- 5. Evolution that is due to mutual influence
- 6. Pre determined age of object due to absolute dating.
- 8. Organ in dif animals showing common ancestor.
- 10. Evolutionary history of a species.
- 11. Isolated populations become dissimilar.
- 14. Geographical distribution of organisms on earth.
- 17. The process of becoming adapted to the environment.
- 18. Remains of organism that lived long ago.
- 19. Individuals adapted to environment survive.
Down
- 1. species become similar due to environment.
- 3. Measure of hereditary contribution to the next generation.
- 7. Species evolve from ancestral species.
- 9. Age of object in relation to ages of other objects.
- 12. Has lost most function de to evolution.
- 13. Layers of rock.
- 15. Change within a population from one gen to the next.
- 16. Young rocks lie above older rocks.